import Vue from 'vue'
import Router from 'vue-router'
import Login from '@/components/Login'
import Home from '@/components/Home'
import Welcome from '@/components/Welcome'
import User from '@/components/user/User.vue'
import Rights from '@/components/power/Rights'
import Roles from '@/components/power/Roles'
import Classify from '@/components/goods/Classify'
import Params from '@/components/goods/Params'
import List from '@/components/goods/List'


Vue.use(Router)


const router = new Router({
  routes: [
    { path: '/', redirect: '/login' },
    { path: '/login', component: Login },
    {
      path: '/home', component: Home, redirect: '/welcome',
      children: [
        { path: '/welcome', component: Welcome },
        { path: '/110', component: User },
        { path: '/112', component: Rights },
        { path: '/111', component: Roles },
        { path: '/121', component: Classify },
        { path: '/115', component: Params },
        { path: '/104', component: List },
      ]
    }
  ]
})

// 挂载路由导航守卫
router.beforeEach((to, from, next) => {
  // to 将要访问的路径
  // from 代表从哪个路径跳转而来
  // next 是一个函数，表示放行
  //     next()  放行    next('/login')  强制跳转

  if (to.path === '/login') return next()
  // 获取token
  const tokenStr = window.sessionStorage.getItem('token')
  if (!tokenStr) return next('/login')
  next()
})

export default router
